CN210963368U

CN210963368U - Remaining needle operated by single hand

Info

Publication number: CN210963368U
Application number: CN201921642193.5U
Authority: CN
Inventors: 雒学萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-07-10
Anticipated expiration: 2029-09-29

Abstract

The utility model provides a needle is kept somewhere in one-hand operation, including pipe, isolation stopper, pipe seat, nook closing member, Y type siphunculus, cylinder, needle file, needle wing and needle point protective sheath, wherein, keep apart the stopper and fix in the pipe seat, needle file and needle point protective sheath are installed in the cylinder, and the pipe seat passes through the nook closing member to be connected with the cylinder, still includes boosting device, boosting device includes telescopic link, pipe seat push pedal, first spring and second spring, and wherein, pipe seat push pedal and needle file are connected respectively to the telescopic link both ends, and butt is on pipe seat push pedal and needle file after first spring and second spring are compressed by the telescopic link respectively. When withdrawing the needle, with the movement track of telescopic link correction spring, avoid the spring to produce simultaneously and kick-back, so, increased patient's use comfort.

Description

Remaining needle operated by single hand

Technical Field

The utility model belongs to the technical field of keep somewhere the needle, concretely relates to needle is kept somewhere in one-hand operation.

Background

The indwelling needle is a main tool for clinical infusion treatment, has the advantages of difficult blood vessel damage and reduction of the times of venipuncture of patients, and greatly relieves the pain of the patients while ensuring intravenous medication. In clinical operation, the operation of existing indwelling needles mostly adopts a two-hand needle withdrawing method, which specifically comprises the following steps: the needle is withdrawn by 2 to 3mm after blood return is seen after the vein is punctured by holding the needle handle, the catheter and the needle core are sent together, and then the needle core is withdrawn, in the operation, the needle core withdrawing operation needs two hands, and when the hands of medical staff are insufficient, the needle withdrawing operation by two hands of a single person is very inconvenient; or after blood returns after the vein is punctured, withdrawing the needle by 2-3 mm, withdrawing the needle core and delivering the catheter at the same time, wherein in the operation, the catheter is generally delivered by the thumb of the right hand and the needle core is withdrawn by the forefinger of the right hand, although the operation is carried out by one hand, the needle withdrawal is difficult for active children or patients with tight skin.

Some automatic needle withdrawing designs exist in the existing market, most of the automatic needle withdrawing designs are that a spring is embedded into a needle cylinder, and after the spring is triggered, a needle core is ejected backwards or a catheter is ejected forwards through elasticity. This design has the following disadvantages: during the movement process of the needle core or the catheter, the needle core or the catheter easily shakes back and forth due to the inertia of the spring; when the spring is compressed, the stress is uneven, and the ejection track of the needle core or the catheter is easy to bend. For this reason, discomfort in use by the patient is easily increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a single-hand operation indwelling needle which can not only send the catheter into but also return the needle core at the same time.

The utility model provides a needle is kept somewhere in one-hand operation, including pipe, isolation stopper, pipe seat, nook closing member, Y type siphunculus, cylinder, needle file, needle wing and needle point protective sheath, wherein, keep apart the stopper and fix in the pipe seat, needle file and needle point protective sheath are installed in the cylinder, and the pipe seat passes through the nook closing member to be connected with the cylinder, still includes thrust unit, thrust unit includes telescopic link, pipe seat push pedal, first spring and second spring, and wherein, pipe seat push pedal and needle file are connected respectively to the telescopic link both ends, and butt is on pipe seat push pedal and needle file after first spring and second spring are compressed by the telescopic link respectively.

Preferably, the telescopic link is cup jointed by female pole and son pole and is constituteed, and female pole end connection pipe seat push pedal, son pole end connection needle file.

Preferably, the female rod is provided with a bayonet, the secondary rod is provided with a protrusion, and the protrusion is matched with the bayonet.

Preferably, a linear sliding groove and an L-shaped sliding groove are arranged on the needle cylinder, the linear sliding groove is used for fixing the sliding tracks of the female rod and the catheter seat, and the L-shaped sliding groove is used for fixing the sliding tracks of the male rod and the needle seat.

Preferably, the tail end of the sub-rod is provided with a needle wing, and the needle wing is stirred to drive the sub-rod to rotate.

Preferably, the telescopic length of the telescopic rod is more than 2cm and less than 5 cm.

Preferably, the indwelling needle further comprises a protection tube, the protection tube is sleeved at the tail end of the catheter seat, and the needle core and the catheter are located in the protection tube.

Through the utility model provides a needle is kept somewhere in one-hand operation has set up pipe, isolation stopper, pipe seat, nook closing member, Y type siphunculus, cylinder, needle file, needle wing and needle point protective sheath, and wherein, isolation stopper fixes in the pipe seat, and needle file and needle point protective sheath are installed in the cylinder, and the pipe seat passes through the nook closing member to be connected with the cylinder, still includes boosting device, boosting device includes telescopic link, pipe seat push pedal, first spring and second spring, and wherein, pipe seat push pedal and needle file are connected respectively to the telescopic link both ends, and butt on pipe seat push pedal and needle file after first spring and second spring are compressed by the telescopic link respectively. When withdrawing the needle, with the movement track of telescopic link correction spring, avoid the spring to produce simultaneously and kick-back, so, increased patient's use comfort.

Other features and advantages of the present application will become more apparent from the detailed description of the embodiments of the present application when taken in conjunction with the accompanying drawings.

Drawings

FIG. 1 is a schematic view showing an unused state of a retaining needle operated by one hand according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view showing the completion of needle withdrawal of the indwelling needle operated by one hand according to the preferred embodiment of the present invention;

fig. 3 is a partially enlarged view of the protrusion and the bayonet of the telescopic rod according to the preferred embodiment of the present invention;

fig. 4 is a schematic view of the linear sliding groove and L type sliding groove on the needle cylinder of the indwelling needle operated by one hand according to the preferred embodiment of the present invention.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Referring to fig. 1, the indwelling needle operated by one hand according to the present embodiment includes a catheter 1, an isolating plug 2, a catheter holder 3, a needle core 4, a Y-shaped tube 5, a needle cylinder 6, a needle holder 7, a needle wing 8, and a needle tip protecting sleeve 9, wherein the isolating plug 2 is fixed in the catheter holder 3, the needle holder 7 and the needle tip protecting sleeve 9 are installed in the needle cylinder 6, and the catheter holder 3 is connected to the needle cylinder 6 through the needle core 4.

With reference to fig. 2, the single-hand operated indwelling needle provided in this embodiment further includes a boosting device, the boosting device includes a telescopic rod 10, a catheter seat push plate 11, a first spring 12 and a second spring 13, wherein two ends of the telescopic rod 10 are respectively connected to the catheter seat push plate 11 and the needle seat 7, and the first spring 12 and the second spring 13 are respectively compressed by the telescopic rod 10 and then abutted against the catheter seat push plate 11 and the needle seat 7.

Referring to fig. 3, the telescopic rod 10 is formed by sleeving a main rod 101 and a sub rod 102, the end of the main rod 101 is connected to the catheter seat push plate 11, and the end of the sub rod 102 is connected to the catheter seat 7. The female rod 101 is provided with a bayonet 1011, the secondary rod 102 is provided with a projection 1021, and the projection 1021 is matched with the bayonet 1011. Wherein, the end of the sub-rod 102 is provided with the needle wing 8, the needle wing 8 is poked to drive the sub-rod 102 to rotate, the protrusion 1021 is disengaged from the bayonet 1011, the first spring 12 and the second spring 13 respectively push the catheter seat push plate 11 and the needle seat 7, that is, the catheter seat push plate 11 pushes the catheter 1 to move forward, and the needle seat 7 drives the needle core 4 to move backward. Meanwhile, the female rod 101 and the male rod 102 slide in opposite directions, respectively, thereby playing a role in limiting the inertia of the first spring 12 and the second spring 13 and fixing the linear motion track of the catheter 1 and the needle hub 7. In this embodiment, the telescopic rod is more than 2cm in length and less than 5cm in length.

Referring to fig. 4, the syringe is provided with a linear sliding groove 6a and an L-shaped sliding groove 6b, the linear sliding groove 6a is used for fixing the sliding track of the female rod 101 and the catheter holder 3, the L-shaped sliding groove 6b is used for fixing the sliding track of the sub-rod 102 and the needle holder 7, when the indwelling needle is not used, the first spring 12 and the second spring 13 are both in a compressed state, the sub-rod 102 and the needle holder 7 are clamped on the shorter end of the L-shaped sliding groove 6b, when the needle wing 8 is dialed, the sub-rod 102 rotates along with the sliding track, the sub-rod 102 slides backwards along the longer end of the L-shaped sliding groove 6b, and the female rod 101 slides forwards along the linear sliding groove 6 a.

In addition, in order to ensure the integrity of the indwelling needle before use, the indwelling needle operated by one hand provided by the embodiment further comprises a protection tube (not shown in the figure), the protection tube is sleeved at the tail end of the catheter seat, the needle core and the catheter are positioned in the protection tube, and meanwhile, the safety of medical personnel using the indwelling needle is ensured.

Through the utility model discloses the needle is kept somewhere in one-hand operation that preferred embodiment provided has set up pipe, isolation stopper, pipe seat, nook closing member, Y type siphunculus, cylinder, needle file, needle wing and needle point protective sheath, and wherein, the isolation stopper is fixed in the pipe seat, and needle file and needle point protective sheath are installed in the cylinder, and the pipe seat passes through the nook closing member and is connected with the cylinder, still includes boosting device, boosting device includes telescopic link, pipe seat push pedal, first spring and second spring, and wherein, pipe seat push pedal and needle file are connected respectively at the telescopic link both ends, and butt is on pipe seat push pedal and needle file after first spring and second spring are compressed by the telescopic link respectively. When withdrawing the needle, to the movement track of telescopic link correction spring, avoid the spring to produce simultaneously and kick-back, so, when making things convenient for medical personnel to use, reduced the uncomfortable sense of disease.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A single-hand operated remaining needle comprises a catheter, an isolation plug, a catheter seat, a needle core, a Y-shaped through pipe, a needle cylinder, a needle seat, needle wings and a needle point protective sleeve, wherein the isolation plug is fixed in the catheter seat, the needle seat and the needle point protective sleeve are arranged in the needle cylinder, the catheter seat is connected with the needle cylinder through the needle core,

the device comprises a telescopic rod, a catheter seat push plate, a first spring and a second spring, wherein the two ends of the telescopic rod are respectively connected with the catheter seat push plate and the needle seat, and the first spring and the second spring are respectively pressed by the telescopic rod and then abutted against the catheter seat push plate and the needle seat.

2. The single-hand operated indwelling needle of claim 1, wherein the telescoping rod is made up of a female rod and a male rod, the female rod is connected to the catheter hub push plate, and the male rod is connected to the needle hub.

3. The single-handed operated indwelling needle of claim 2, wherein the female shaft is provided with a bayonet and the secondary shaft is provided with a protrusion, the protrusion mating with the bayonet.

4. The single-hand operated indwelling needle of claim 2, wherein the barrel is provided with a linear groove for fixing the sliding track of the female shaft and the catheter hub and a L type groove for fixing the sliding track of the male shaft and the catheter hub.

5. The single-handed operated indwelling needle of claim 2, wherein the end of the sub-rod is provided with a needle wing, and the needle wing is poked to drive the sub-rod to rotate.

6. The single-handed operated indwelling needle of claim 1, wherein the telescoping shaft has a telescoping length greater than 2cm and less than 5 cm.

7. The single-handed indwelling needle according to claim 1, further comprising a protective tube that is fitted over the distal end of the catheter hub, the stylet and the catheter being located within the protective tube.